SEC Form 4 · accession 0001859690-26-000148
Arqit Quantum Inc. · ARQQ
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Carlo Calabria
Director
Period of report
Jul 15, 2026
Accepted (ET)
Jul 17, 2026 · 6:23 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001859690
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Share UnitsF1 | — | Jul 15, 2026 | A | 757 | A | — | — | Ordinary Shares | 757 | 757 | D |
Explanation of responses
- F1Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis. The RSUs vest within the week of the grant date.
Remarks
Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the "Act"), the reporting person's transactions in the issuer's securities are exempt from Sections 16(b) and 16(c) of the Act. Ex.24 - Power of Attorney